They once were in desperate situations, but three dogs rescued in Metro Detroit last month are on the mend.

Perhaps the happiest is “Bentley,” the St. Bernard found trapped in an abandoned Detroit house last week.

Detroit Dog Rescue officials rushed to treat the dog, who was underweight and showing signs of organ failure. As word spread about his case, supporters alerted the pup’s original owners, who told volunteers he was stolen from their home on Easter Sunday, said Executive Director Kristina Rinaldi.

After connecting with the group and presenting paperwork proving ownership, the family reunited Monday evening, she said. “It was so emotional. We were so happy we were able to close this chapter for them.”

The person who mistreated 5-year-old Bentley has not yet been found, Rinaldi said. Meanwhile, the St. Bernard, who had been on a slow-feed schedule, continues to recuperate. “We’re going to follow up to make sure he’s OK.”

Recovery is also key for Mackinac, a black Labrador Retriever whose right rear leg Michigan Humane Society officials said was amputated using garden shears and a kitchen knife.

Investigators have been working with authorities to determine charges against the owner, who told a TV station he could not afford treatment for gangrene that set in following a fight with other dogs.

“This was a deliberate act based on the separation of the burns from the shoulder, neck, head and legs and the linear aspects of many of the burns,” said Dr. Melinda Merck of Veterinary Forensics Consulting, who reviewed the wounds, in a recent statement.

Named after the mythical creature that emerged from ashes, Phoenix underwent treatment and remained “in good spirits,” said Elaine Greene, executive director at Friends for Animals of Metro Detroit.

She is “doing much better,” has been adopted and was expected to head home with her new owners as early as this week, said Colleen Robar, a spokeswoman for the shelter.